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<title>Berkeley DB Reference Guide: Release 4.4: mutexes</title>
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<td><b><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></b></td>
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<p align=center><b>Release 4.4: mutexes</b></p>
<p>The DB_ENV&gt;set_tas_spins and DB_ENV&gt;get_tas_spins methods have
been renamed to <a href="../../api_c/mutex_set_tas_spins.html">DB_ENV-&gt;mutex_set_tas_spins</a> and
<a href="../../api_c/mutex_set_tas_spins.html">DB_ENV-&gt;mutex_get_tas_spins</a> to match the new mutex support in the Berkeley DB
4.4 release.  Applications calling the old methods should be updated to
use the new method names.</p>
<p>For backward compatibility, the string "set_tas_spins" is still supported
in <a href="../../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> files.</p>
<p>The --with-mutexalign=ALIGNMENT compile-time configuration option has
been removed from Berkeley DB configuration.  Mutex alignment should now be
configured at run-time, using the <a href="../../api_c/mutex_set_align.html">DB_ENV-&gt;mutex_set_align</a> method.</p>
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